asthenopia – MySymptom

Why do my eyes feel dry and tired after staring at a computer display?

1. Introduction Dry and tired eyes after staring at a computer display are caused by a condition known as digital eye strain, which primarily stems from a significantly reduced blink rate and increased evaporation of the tear film. When focused on a digital screen, the ocular muscles also work continuously to maintain focus and alignment, … Read more

Why do my eyes feel strained and tired after reading small textbook font?

1. Introduction Eye strain after reading small textbook font is caused by the continuous isometric contraction of the ciliary muscle inside the eye, which is required to maintain sharp focus on close objects. The extraocular muscles also work relentlessly to keep both eyes converged on the tiny text, leading to profound muscular fatigue and discomfort. … Read more